City of KwinanaPopulation forecast
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City of Kwinana

Population and age structure

Between 2016 and 2026, the age structure category with the greatest increase in persons in the City of Kwinana is 'Parents and homebuilders (35 to 49)'.

Knowledge of how the age structure of the population is changing is essential for planning age-based facilities and services, such as child care, recreation and aged care.

The forecast age groups of the City of Kwinana is a function of the current age of the population (people aging each year, being born and dying) as well as the age of people migrating into and out of the area. This in turn is driven by location (fringe, city centre, regional or rural) the existing housing stock (separate dwellings, medium or high density), the amount and type of new residential development (same as existing stock, or diversifying) and where the area is in a cycle of change. We call this the area’s residential role and function. You can learn more about this in the section household and suburb life cycles.

Forecast age structure - Service age groups
City of Kwinana - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
Babies and pre-schoolers (0 to 4)3,5828.95,8159.27,7629.1+4,180
Primary schoolers (5 to 11)4,03710.06,59110.59,03310.6+4,996
Secondary schoolers (12 to 17)2,7306.84,5907.36,1737.2+3,443
Tertiary education and independence (18 to 24)4,13010.26,40510.28,52010.0+4,390
Young workforce (25 to 34)8,07120.011,65918.515,41218.1+7,341
Parents and homebuilders (35 to 49)8,64821.513,58421.617,69420.8+9,046
Older workers and pre-retirees (50 to 59)3,9509.86,0339.68,4249.9+4,474
Empty nesters and retirees (60 to 69)2,8147.04,2096.75,8946.9+3,080
Seniors (70 to 84)2,0285.03,3645.35,0966.0+3,068
Elderly aged (85 and over)3150.86511.01,1501.4+835
Total persons40,305100.062,902100.085,158100.0+44,853

Population and household forecasts, 2016 to 2036, prepared by .id , the population experts, December 2017.

Forecast age structure - Service age groups
Forecast age structure - Service age groups Forecast persons aged 85+,  2036: 1,150 Forecast persons aged 70-84,  2036: 5,096 Forecast persons aged 60-69,  2036: 5,894 Forecast persons aged 50-59,  2036: 8,424 Forecast persons aged 35-49,  2036: 17,694 Forecast persons aged 25-34,  2036: 15,412 Forecast persons aged 18-24,  2036: 8,520 Forecast persons aged 12-17,  2036: 6,173 Forecast persons aged 5-11,  2036: 9,033 Forecast persons aged 0-4,  2036: 7,762 Forecast persons aged 85+,  2026: 651 Forecast persons aged 70-84,  2026: 3,364 Forecast persons aged 60-69,  2026: 4,209 Forecast persons aged 50-59,  2026: 6,033 Forecast persons aged 35-49,  2026: 13,584 Forecast persons aged 25-34,  2026: 11,659 Forecast persons aged 18-24,  2026: 6,405 Forecast persons aged 12-17,  2026: 4,590 Forecast persons aged 5-11,  2026: 6,591 Forecast persons aged 0-4,  2026: 5,815 Forecast persons aged 85+,  2016: 315 Forecast persons aged 70-84,  2016: 2,028 Forecast persons aged 60-69,  2016: 2,814 Forecast persons aged 50-59,  2016: 3,950 Forecast persons aged 35-49,  2016: 8,648 Forecast persons aged 25-34,  2016: 8,071 Forecast persons aged 18-24,  2016: 4,130 Forecast persons aged 12-17,  2016: 2,730 Forecast persons aged 5-11,  2016: 4,037 Forecast persons aged 0-4,  2016: 3,582
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, December 2017.
Forecast change in age structure - Service age groups
Forecast change in age structure - Service age groups Forecast persons aged 85+,  2026 to 2036: 499 Forecast persons aged 70-84,  2026 to 2036: 1,732 Forecast persons aged 60-69,  2026 to 2036: 1,685 Forecast persons aged 50-59,  2026 to 2036: 2,391 Forecast persons aged 35-49,  2026 to 2036: 4,111 Forecast persons aged 25-34,  2026 to 2036: 3,753 Forecast persons aged 18-24,  2026 to 2036: 2,115 Forecast persons aged 12-17,  2026 to 2036: 1,583 Forecast persons aged 5-11,  2026 to 2036: 2,442 Forecast persons aged 0-4,  2026 to 2036: 1,947 Forecast persons aged 85+,  2016 to 2026: 336 Forecast persons aged 70-84,  2016 to 2026: 1,336 Forecast persons aged 60-69,  2016 to 2026: 1,395 Forecast persons aged 50-59,  2016 to 2026: 2,083 Forecast persons aged 35-49,  2016 to 2026: 4,936 Forecast persons aged 25-34,  2016 to 2026: 3,588 Forecast persons aged 18-24,  2016 to 2026: 2,275 Forecast persons aged 12-17,  2016 to 2026: 1,860 Forecast persons aged 5-11,  2016 to 2026: 2,554 Forecast persons aged 0-4,  2016 to 2026: 2,233
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, December 2017.

Key findings

In the City of Kwinana between 2016 and 2026, the number of persons aged under 17 is forecast to increase by 6,647 (64.2%), and will comprise 27.0% of the total population.

The number of persons aged over 60 is expected to increase by 3,067 (59.5%) and comprise 13.1% of the total population.

The largest service age group in 2026 is 'Parents and homebuilders (35 to 49)', with a total of 13,584 persons.

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